Figure 6.

Selection analysis of PTP evolution (Clades 3 and 4). Unrooted phylogenetic trees from Bayesian inferences under the GTR+ I + G substitution model of clade 3 and clade 4 (see Table 2). Symbols are the same as in Figure 5. Although defined as different subclades PTP D and M have been analyzed together because their sequences are very close.

Serbielle et al. BMC Evolutionary Biology 2012 12:253   doi:10.1186/1471-2148-12-253
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